Is space a vaccuum?

4 Answers

  • 1 month ago
    Favourite answer


    only a partial vacuum. As you get closer to the sun (or any sun) the density goes up due to random dust and air molecules. But even between stars there is some material, and between galaxies, even less, but still some. 

    intergalactic space, density is about 10^-27 kg/m³   or one hydrogen atom per m³

    The density of matter in the interstellar medium can vary considerably: the average is around 1 million particles per m³, but cold molecular clouds can hold 100 million on up per m³. A number of molecules exist in interstellar space, as can tiny 0.1 μm dust particles.

    The density of the interplanetary medium is  about 5 million particles per m³ in the vicinity of the Earth; it decreases with increasing distance from the Sun, in inverse proportion to the square of the distance.

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  • Anonymous
    1 month ago

    When people say that space is a vacuum, they mean that the parts of space that are far away from planets, stars, etc. are nearly a vacuum. That means that the concentration of particles in those regions is very tiny compared to the concentration in our atmosphere.

    Are you asking a question you want to knows the meaning of?   Or are you trying to play school teacher here?

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  • Clive
    Lv 7
    1 month ago

    Yes, almost......

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  • 1 month ago

    It is indeed

    And better than anything Earth Engineering can produce

    Like one Hydrogen Molecule per Cubic Metre

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